JPS55112550A - Sealing part check unit of plastic bag - Google Patents

Sealing part check unit of plastic bag

Info

Publication number
JPS55112550A
JPS55112550A JP14716778A JP14716778A JPS55112550A JP S55112550 A JPS55112550 A JP S55112550A JP 14716778 A JP14716778 A JP 14716778A JP 14716778 A JP14716778 A JP 14716778A JP S55112550 A JPS55112550 A JP S55112550A
Authority
JP
Japan
Prior art keywords
light
sealing part
circuit
output
plastic bag
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14716778A
Other languages
Japanese (ja)
Inventor
Tomoki Takashima
Masanao Mitsui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP14716778A priority Critical patent/JPS55112550A/en
Publication of JPS55112550A publication Critical patent/JPS55112550A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination

Abstract

PURPOSE:To make it possible to check automatically sealing part of a plastic bag on the basis of a fixed check reference, by irradiating a light beam to the sealing part of the light trensmission-property sealed vessel and by deciding whether the sealing part is good or not on the basis of the state of the diffracted light and the scattered light in the sealing part. CONSTITUTION:A light source to generate interferable light flux s1 and an optical system consisting of light shielding material B to shield transmission light s2 and lens L to condense the scattered light and diffracted light s3 are arranged with sealing part g1 of light transmission-property sealed vessel G interposed. Condensed scattered light and diffarcted light s4 are converted to electric signals by photoelectric conversion element P. The output of this element P is supplied to a propriety discrimination circuit. This propriety discrimination circuit is formed by level decision circuit X consisting of comparators C1-C3, which divide the output level of element P into, for example, there stages and decide it, and exclusion signal generation circuit Y which generates an exclusion signal when the output of circuit X is processed to detect defective sealing.
JP14716778A 1978-11-30 1978-11-30 Sealing part check unit of plastic bag Pending JPS55112550A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14716778A JPS55112550A (en) 1978-11-30 1978-11-30 Sealing part check unit of plastic bag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14716778A JPS55112550A (en) 1978-11-30 1978-11-30 Sealing part check unit of plastic bag

Publications (1)

Publication Number Publication Date
JPS55112550A true JPS55112550A (en) 1980-08-30

Family

ID=15424093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14716778A Pending JPS55112550A (en) 1978-11-30 1978-11-30 Sealing part check unit of plastic bag

Country Status (1)

Country Link
JP (1) JPS55112550A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6111643A (en) * 1984-06-27 1986-01-20 Satoru Suzuki Method and device for see through inspection of product defective condition
JPS62276444A (en) * 1986-04-30 1987-12-01 Nichizou Tec:Kk Apparatus for inspecting hermetically sealed part

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6111643A (en) * 1984-06-27 1986-01-20 Satoru Suzuki Method and device for see through inspection of product defective condition
JPS62276444A (en) * 1986-04-30 1987-12-01 Nichizou Tec:Kk Apparatus for inspecting hermetically sealed part

Similar Documents

Publication Publication Date Title
SE8105637L (en) SIGNALVAGSSTYRKRETS
DE3582950D1 (en) PHOTOELECTRICAL MEASURING DEVICE.
ATE59902T1 (en) OPTOELECTRONIC POSITION SENSING.
JPS5772111A (en) Camera
JPS55112550A (en) Sealing part check unit of plastic bag
JPS5630630A (en) Foreign matter detector
JPS5687818A (en) Reflex type position detector
JPS5629112A (en) Distance measurement unit
JPS57104808A (en) Shape measuring apparatus
JPS57166582A (en) Object detector
JPS56123074A (en) Alarm device
JPS56137332A (en) Optical not circuit
JPS56131258A (en) Photoelectric converter
SU1216740A1 (en) Acoustoptical apparatus for measuring frequency of radio signal
JPS5676666A (en) Detection circuit for call-out signal
JPS56124016A (en) Light detector
JPS5511606A (en) Photoelectric conversion device
FR2402867A2 (en) Particle mixt. granular curve determining system - uses network of photodiodes, and convergent optical system producing diffraction images
JPS57118107A (en) Distance detector
JPS5777946A (en) Discriminating method for road surface condition
JPS5629116A (en) Measurement unit for moving distance
JPS56116006A (en) Setting method for optical axis of light image
JPS5520454A (en) Testing unit of light transmitting object dependent upon laser
JPS56150739A (en) Exposure setter
JPS56109020A (en) Signal processor